<h1>我第一个Attribute Directive</h1>
<h4>选择一个颜色</h4>
<div>
	<div class="radio">
        <label><input type="radio" name="colors" (click)="color='lightgreen'">绿</label>
	</div>
    <div class="radio">
	    <label><input type="radio" name="colors" (click)="color='yellow'">黄</label>
    </div>
    <div class="radio">
	    <label><input type="radio" name="colors" (click)="color='cyan'">蓝绿</label>
    </div>
</div>
<p [guideHighlight]="color" [defaultColor]="'violet'">Highlight me!</p>